-er -ji b-u bbb bbe bbi bbk bbl bbr bbt bbu be- beb bee bei bek bel ber bet beu bi- bib bie bii bij bik bil bir bit biu bji bjj bjk bjr bjt bju bkb bke bkk bkl bkr bkt blb ble bli blj blk bll blr blt blu brb bre bri brj brk brl brr brt bru btb bte bti btk btl btr btt btu bub bue bui buj buk bul bur but buu ebb ebe ebi ebj ebk ebl ebr ebt ebu eeb eee eek eel eer eet eib eie eii eij eik eil eir eit eiu eji ejl ejt eju ekb eke eki ekl ekr ekt eku elb ele eli elk ell elr elt elu erb ere eri erk erl err ert eru etb ete eti etj etk etl etr ett etu eu- eub eue eui euj eul eur eut ibb ibe ibi ibj ibk ibl ibr ibt ibu ie- iee iei iej iek iel ier iet iib iie iii iij iil iir iit iiu ijb ije iji ijk ijl ijt iju ikb ike iki ikk ikl ikr ikt iku il- ilb ile ili ilk ill ilr ilt ilu ir- irb ire iri irj irk irl irr irt iru itb ite iti itj itk itl itt itu iu- iub iue iui iur iut j-i jbi jbj jbk jbl jbr jbt jbu jeb jee jei jej jek jel jer jet jeu jib jie jii jij jil jir jit jiu jjb jjj jjk jjl jjr jju jkb jkk jkl jkr jkt jku jlb jle jli jll jlr jlt jlu jrb jri jrk jrl jrr jrt jtb jte jti jtk jtl jtr jtt jtu jub jue jui juk jul jur jut k-t kbb kbe kbi kbk kbl kbr kbu ke- keb kee kei kek kel ker ket kib kie kii kij kik kil kir kit kiu kjb kje kji kjr kju kkb kke kki kkk kkl kkr kkt kku kl- klb kli klr klt klu kri krk krl krr krt kru ktb kte ktj ktk ktl ktr ktt ktu kub kue kui kuj kuk kul kur kut kuu lbb lbe lbi lbj lbk lbl lbr lbt lbu leb lee lei lej lek lel ler let leu lib lie lii lij lik lil lir lit liu lje ljj lju lkb lkl lkr lkt llb lle lli llj llk lll llr llt llu lrb lri lrk lrr lrt lru ltb lte lti ltk ltl ltr ltt ltu lub lue lui luk lul lur lut luu rbb rbe rbi rbk rbl rbr rbt rbu re- reb ree rei rek rel rer ret reu rib rie rii rik ril rir rit rjk rjr rkb rke rkk rkt rku rle rli rll rlr rlt rlu rrb rri rrk rrl rrr rrt rru rtb rte rti rtj rtk rtl rtr rtt rtu rub rue rui ruk rur rut ruu tbb tbe tbi tbj tbk tbl tbr tbt tbu te- teb tee tei tej tek tel ter tet teu tib tie tii tik til tir tit tiu tje tji tjr tju tkb tke tkk tkl tkr tkt tle tli tlj tlk tll tlr tlt tlu trb tre tri trk trl trr trt tru ttb tte tti ttk ttl ttr ttt ttu tub tue tui tuj tuk tul tur tut tuu ubb ube ubi ubk ubl ubr ubt ubu ueb uee uei uel uer uet uib uie uii uil uir uit uiu uji ukb uke uki ukk ukl ukr uku ulb ule uli ulk ull ulr ult ulu ur- urb ure uri urk url urr urt uru utb ute uti utj utk utl utr utt utu uue uur uut uuu